HYSON-CELLS

Application and method

Estimated installed cost

Estimated installed cost

S A Rand

US Dollars

unit

Farm dams

Hyson Cells

R110

to

R155

$18

to

$26

/ m³

Hyson Cells may be used to confine any granular material, including in-situ sand, for use as the dam wall and core. Hyson Cells are also used to clad the wall for riprap wave protection and to line spillways.

Conventional farm dam walls

R185

to

R250

$31

to

$42

/ m³

Clay is needed. Spillways are lined with concrete and stone riprap is used for wave protection.

Earthen farm dam walls - no clay core, no concrete

R50

to

R100

$8

to

$17

/ m³

These dams suffer from problems with piping and have a danger of breaching. Selected fills are needed. Careful compaction required. Expensive spillways.

Earthen dams with clay cores, no concrete

R150

to

R250

$25

to

$42

/ m³

Use selected clay for cores. Careful compaction required. Expensive spillways.

Concrete skin, rock fill walls

R185

to

R250

$31

to

$42

/ m³

Needs access to suitable rock. Difficult to place concrete facings.

Large dam walls

Hyson Cells

Use Hyson Cells "bulk packs" filled with inexpensive in-situ granular fill. Fill is compacted with poker vibrators. Clad with Hyson Cells riprap and spillway protection systems.

R85

to

R250

$14

to

$42

/ m³

Mass concrete walls

R250

to

R350

$42

to

$58

/ m³

Large batching plants. Shuttering. Curing is important.

Rollcrete walls

R120

to

R220

$20

to

$37

/ m³

Large batching plant. Heavy equipment. Curing is important.

Rockfill walls with impervious cores

R150

to

R250

$25

to

$42

/ m³

Subterranean (underground) dams to control water table

Hyson Cells

Hyson Cells bulk packs provide the required immeable boundary. Fill with in-situ granular fill.

R79

to

R110

$13

to

$18

/ m³

Grouted stone walls

R150

to

R200

$25

to

$33

/ m³

This is the normal method in South Africa.

Contact us at info@hysoncells.co.za